@article{fdi:010070298,
  title = {{M}ercury accumulation rates in {C}aco {L}ake, {NE} {B}razil during the past 20.000 years},
  author = {de {L}acerda, {L}. {D}. and {T}urcq, {B}runo and {S}ifeddine, {A}bdelfettah and {C}ordeiro, {R}. {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}otal {H}g, {TC}, {TN}, goethite and siderite distributions in sediment cores from two locations across {C}aco) {L}ake ({B}razil) identified paleoclimate factors that had affected the {H}g deposition in this shallow tropical lake and its relationship with past climate and basin processes. {C}oncentrations and fluxes of {H}g were maximum in the {L}ast {G}lacial {M}aximum ({LGM}), with averages of 397 ng g(-1), and 24.3 mu g m(-2) yr(-1), respectively, decreasing during the {H}einrich {S}tadial 1 ({H}1) and further during the {M}eltwater pulse 1{A} ({MWP}-1{A}). {T}he higher values during {LGM} and {H}1 were strongly associated with dust deposition as observed in {G}reenland ice cores. {A}fter a period of lower values, there was a significant increase of concentrations and fluxes during the {Y}ounger {D}ryas (193 ng g(-1) and 4.1 mu g m(-2) yr(-1)), still associated in part with dust deposition but also being influenced by the high volcanic activity of this period. {C}oncentrations and fluxes decreased again to the lowest values during the {H}olocene from about 9500 to 2000 cal yr {BP} (114 ng g(-1) and 1.25 mu g m(-2) yr(-1)). {A}nalyses of {P}b-210 dated shorter cores shows increasing {H}g accumulation rates during the past century, larger than in other period in the past but could not evidence the influence of colonial gold mining as suggested by earlier studies.},
  keywords = {{P}aleoclimate ; {T}ropical lake ; {D}eposition ; {M}ercury ; {BRESIL} ; {CACO} {LAC}},
  booktitle = {},
  journal = {{J}ournal of {S}outh {A}merican {E}arth {S}ciences},
  volume = {77},
  numero = {},
  pages = {42--50},
  ISSN = {0895-9811},
  year = {2017},
  DOI = {10.1016/j.jsames.2017.04.008},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070298},
}